What numbers do you get without deinterlacing? Don't forget, the PureVideo deinterlacer is a heavy load. It will be interesting to see if it is faster than similar Avisynth filters, such as yadif. LeakKernelDeint() is very simple by comparison. PureVideo produces much better quality deinterlacing.

ok i seem to have missed something with purevideo then. how or where do you pick adaptive? i can see "smart/film/video/automatic" in this window and only "best available/combine fields/display fields separately"?

Since the source code hasn't been released I assume this program has been completely rewritten from scratch, even though the interface is very similar to the existing GPL licensed dvd2avi/dgmpgdec programs?

is there any reason why dgmpgdec doesnt have .mpg in the allowed extensions to open by default? as lots of tv card software like hauppauge record .mpg mpeg2 files. i get the error "program streams not supported" when i enable all extensions to be opened and then try to open a .mpg file.